. >> the forest service says there's only one problem with the technology, there's not enough of it. but nasa has another@answer. this censor can work around the clock. as for the pilots, their bags are packed. >> we're ready to go. next week we'll be in new mexico. >> at nasa research center, abc7 news. >> people around the bay area joined others around the planet to celebrate earth day. thousands of volunteers in nearly every community took advantage of the great weather to give the environment a little extra care. teams of volunteers from pacific beach to golden gate park could be seen working together on cleanup and beautification projects in oak ladies and gentlemen, many locations, including lake merritt were getting special attention, from trash pickup, graffiti removal, weeding and planting, 3500 volunteers were working to give the city a makeover. earth day is the city's largest single day volunteer project. >> about 400 volunteers are coming together this weekend to build hope and affordable housing in east oakland. earth day laurens the three-day habitat for humanity build